Problems from 2021 ICPC North America Regional Programming Contests (March 5 2022)

Name
Fastest
Shortest
Total
Acc.
Ratio
Difficulty
Languages
Archery Accuracy0.018711744124%6.5Harden
Average Character0.0054757192040%2.1Easyen
Black and White0.0759245618741%4.8Mediumen
Circle Bounce0.0020023511248%4.8Mediumen
Diagonals0.0018532307030%7.1Harden
Dorm Room Divide0.01476183626214%6.4Harden
Double Password0.0054517260658%1.6Easyen
Fail Them All!0.0089949011724%8.0Harden
Hopscotch 5000.1187870415622%7.1Harden
Overdraft0.0053092127441%2.0Easyen
Problem Set Construction0.01940964042%6.6Harden
Reversibly Cyclic Strings0.00574132544%3.2Mediumen
Rise and Fall0.0088116927624%4.6Mediumen
Scaling Recipe0.005201891545%1.9Easyen
Shortest Missing Subsequences0.0939443314133%6.0Harden
Square Bounce0.004801925730%6.1Harden
Tetris Generation0.0090128430824%6.1Harden
Tournament Seeding0.0322055923642%4.0Mediumen
Tree Hopping0.02893106932330%6.2Harden
Who Goes There?0.00119134742431%3.9Mediumen
XOR Island0.0028336412835%6.9Harden